search query: @keyword frequency converter / total: 113
reference: 21 / 113
« previous | next »
Author:Kukkonen, Lauri
Title:Processor evaluation for low power frequency converter product family
Prosessorien evaluaatio pienitehoisen taajuusmuuttajaperheen komponentiksi
Publication type:Master's thesis
Publication year:2010
Pages:ix + 58 s. + liitt. 5      Language:   eng
Department/School:Elektroniikan, tietoliikenteen ja automaation tiedekunta
Main subject:Sovellettu elektroniikka   (S-66)
Supervisor:Sepponen, Raimo
Instructor:Suomela, Kalle
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201203131557
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
Instructions

Reading digital theses in the closed network of the Aalto University Harald Herlin Learning Centre

In the closed network of Learning Centre you can read digital and digitized theses not available in the open network.

The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/

You can read theses on the Learning Centre customer computers, which are available on all floors.

Logging on to the customer computers

  • Aalto University staff members log on to the customer computer using the Aalto username and password.
  • Other customers log on using a shared username and password.

Opening a thesis

  • On the desktop of the customer computers, you will find an icon titled:

    Aalto Thesis Database

  • Click on the icon to search for and open the thesis you are looking for from Aaltodoc database. You can find the thesis file by clicking the link on the OEV or OEVS field.

Reading the thesis

  • You can either print the thesis or read it on the customer computer screen.
  • You cannot save the thesis file on a flash drive or email it.
  • You cannot copy text or images from the file.
  • You cannot edit the file.

Printing the thesis

  • You can print the thesis for your personal study or research use.
  • Aalto University students and staff members may print black-and-white prints on the PrintingPoint devices when using the computer with personal Aalto username and password. Color printing is possible using the printer u90203-psc3, which is located near the customer service. Color printing is subject to a charge to Aalto University students and staff members.
  • Other customers can use the printer u90203-psc3. All printing is subject to a charge to non-University members.
Location:P1 Ark Aalto  922   | Archive
Keywords:frequency converter
microprocessor
taajuusmuuttaja
mikroprosessori
Abstract (eng): The aim of this thesis is to study processors to be used in a low power frequency converter.
Processors under investigation must be currently or in the near future in the market.
The purpose is to examine suitability of a processor to an application in which price is an essential factor.
The requirements presented in this study will determine which processor will be reviewed more closely.
After a precise review, processor vendors was asked to provide as corresponding device as possible to a test.

Testing was accomplished eventually with five different processors of which two were based on a same core.
The aim of the testing was to investigate suitability of the processors to their target task.
Suitability was tested by executing code that models frequency converter application.
As a result, spent time and clock cycles are presented in certain functions.
In addition to performance, the testing included evaluation of the size of the output code the compilers created.
Functions under test consisted of a combination of arithmetic and logic operations that was used to interpret the suitability of the processor.
Abstract (fin): Tässä työssä tutkitaan markkinoilla olevia tai lähitulevaisuudessa markkinoille saapuvia prosessoreja käytettäväksi pienitehoisissa taajuusmuuttajissa.
Tutkimuksen tarkoitus on selvittää prosessorin sopivuutta sovellukseen, jossa hinta on merkittävä tekijä.
Tutkimuksessa esitettyjen vaatimusten perusteella houkuttelevimmat prosessorit otetaan tarkempaan tutkimukseen.
Tarkemman selvityksen jälkeen vaatimuksia teknisesti mahdollisimman tarkasti vastaavat prosessorit pyydettiin valmistajalta testattavaksi.

Testaaminen suoritettiin lopulta viidelle eri prosessorille, joista kaksi perustui samaan ytimeen.
Testaamisen tavoitteena on selvittää prosessorin sopivuus käyttökohteeseensa.
Sopivuus testattiin suorittamalla prosessoreissa taajuusmuuttajakäyttöä mallintavaa testikoodia.
Tuloksina testikoodin ajamisesta saatiin tietyissä aliohjelmissa kulutettu aika sekä kulutetut kellosyklit.
Suorituskyvyn lisäksi testaukseen kuului prosessorikohtaisen kääntäjän aikaansaaman koodin koko.
Aliohjelmat sisälsivät sekä aritmeettisia, että loogisia operaatioita, joiden kombinaationa mahdollisimman hyvä sopivuus saatiin selvitettyä.
ED:2010-12-10
INSSI record number: 41407
+ add basket
« previous | next »
INSSI